Heel-burnishing machine



(No Model.) 2 Sheets-Sheet 1. J. H. CONNOR &- T. F. & S. G. BLESSINGTON.

HEEL BURNISHING MACHINE.

Pagen'wd July 19, 1887.

N, PETERS. Phulvmhagrwphun Wzuhington. D. c.

(No Model.) 2 Sheets-Sheet Z.

J. H. CONNOR 8t T. P. 8: S G. BLESSINGTON.

HEEL BURNISHING MACHINE;

No. 366,930. Patented July 19, 1887.

UNITED STATES PATENT OFFICE.

JOHN H. CONNOR, THOMAS BLESSINGTON, AND STEPHEN G. BLESSINGTON, OFHAVERHILL, MASSACHUSETTS.

HEEL-BURNISHING MACHINE.

SPECIFICATION forming part of Letters Patent No. 366,930, dated July 19,1887.

Application filed December-27, 1886. Serial No. 222,586.

To all whom it may concern.-

Be it known that we, JOHN H. CONNOR, THOMAS F. BLESSINGTON, and STEPHENG. BLESSINGTON, of Havcrhill, in the county of Essex and State ofMassachusetts, have invented certain new and useful Improvements 1nIIeel-Burnishing Machines, ofwhich the following is a specification.

This invention 'relates to heel-burnishing machines in which aburnishingtool is supported by an arm or holder attached to anoscillating shaft, whereby the tool is reciprocated in the are of acircle of smaller diameter than the width of the heel, the tool beingprovided with a yielding movement, whereby it is enabled to conform tothe curvature of the heel. A familiar example of this class of machinesis the so-called Tapley Heel-Burnishin g Machine.

In particular our invention relates to a machine of this class in whichthe burnishing tool not only reciprocates in the are of a circle, butyields to conform to the curvature of the heel, and also rotates on itsown axis while re- 2 clprocatlng.

Our invention consists in the improvements in machines of this classwhich we will now proceed to describe and claim.

Of the accompanying drawings, forminga part of this specification,Figurel represents a side elevation of a heel-burnishing machineembodying our improvements. Fig. 2 represents a perspective view of thatpart of the machine to which our improvements are confined. Fig. 3represents an enlarged side elevation of the part shown in Fig. 2. Fig.4 represents a sect on on line as m, Fig. 1. Fig. 5 represents a sectionon line 9/ 3 Fig. 1.

The same letters of reference indicate the same parts in all thefigures.

In the drawings, or represents the stand or pedestal, having arms I) bat its upper end,conraining bearings in which is journaled ashaft, c.Said shaft is rocked or oscillated in its bearings by any suitablemechanism, that here shown being a lever, (I, mounted to oscillate on astud, e, on the standard a, and provided at its upper end with asegment-gear, f, meshing with a pinion, g, on the rear end of the 50shaft 0, as shown in dotted lines in Fig. 1.

The lever (Z is oscillated, and. thus caused to (No model.)

rock the shaft c, by a connecting-rod, i, jointed to the lower end ofsaid arm, and a powerdriven shaft, j, having a disk, It, on which is aneccentric wrist-pin, Z, engaged with said connecting-rod.

The mechanism thus far described is substantially the same as thatembodied in the well known Tapley machine, and of itself forms no partof our invention.

m represents an arm affixed to the shalt c, and projecting laterallytherefrom. The outer end of said arm is formed as a guide to hold andpermit the sliding movement of a box or bearing, n, in which isjournaled a shaft or spindle, 0, carrying at one end a burnishingtool,1).

q represents another arm affixed to the shaft 0 at a suitable distancefrom the arm or and bifurcated, as shown in Figs. 2 and 4. Saidbifurcations receive trnnnions r r on a swiveled bearingbloek, s, inwhich the burnishen spindle 0 is journaled.

The swiveled bearing 3 is formed as a frame surrounding an opening,which receives a pinion, t, affixed to the burnisher-spindle, saidspindle having its bearings in two of the side pieces of the swiveledbearing.

it represents an internal gear-segment meshing with the pinion t andaffixed to the standard a, preferably by means of a socket, a. formed onthe rear side of said segment and fitting upon and screwed to one of thearms b. (See Fig. 5.)

It will be seen that the rocking motion of the shaft 0 causes the arms Mq, carrying the burnisher-spindle, to oscillate and reciprocate saidspindle and the burnishing-tool in the arc of a circle. It will also beseen that the engagement of the pinion on said spindle with the fixedinternal gear, a, causes the spindle and burnishingtool to rotate whilereciprocating, the direction of the rotary motion being opposite to thatof the progressive motion of the tool, each reversal of the progressivemo -tion of the tool being accompanied by a re- IOO ture of the heel,which generally varies from the arc of a circle.

The spindle and tool are pressed inwardly to give the toolthe requireddegree of pressure on the heel by springs 10, each attached at one endto a counter-balance, m, on the arm on, and at the other end to an armor lug, a, on the sliding box it.

The boot or shoe is supported by ajack during the burnishing operation.Said jack, as here shown, does not differ from the jack used with theTapley machine, and, as it forms no part of our invention, need not behere described.

lVe prefer to-give the teeth of the pinion t on the tool-carryingspindle a convex curvature and the teeth of the fixed internal gear acorresponding concave curvature, so thatthe outward and inward swingingmovements of the spindle will not effect the engagement of the pinionand gear.

Our improvements, as here shown, are capable of being applied to theoscillating shaft 0 of the Tapley machine without any change in theconstruction of the machine excepting the removal of the-non rotatingburnishing-tool and its supports from said shaft and the substitntiontherefor of the arms on and q and their bearings n and s and the toolcarrying spindie 0, and the attachment to the standard a of the fixedinternal gear, a.

It is obvious that various changes may be made in the details ofconstruction without departing from the spirit of our invention.

' We prefer to limit the inward movement of the burnishingtool, causedby the. springs 10, by adj ustablc devices, so that the tool may beadjusted to different sizes of heels. To'this end we provide the slidinghearing it with a lug, a, in which works an adj listableset-screw, I),arranged to bear in a lug or projection, c,

- on the arm m, said lug and screw constituting an adjustable stop. WVealso prefer to make the tension of the springs 10 adj ustablc toincrease or diminish the pressure of the burnishing-tool on the heel, orto permit the tool to yield or move outwardly without an undue increaseof pressure when used on larger heels. This adjustment of the springs Weeffect in the present instance by forming the eyes with which the endsof said springs are engaged on rods d cl, which are adjustable in thelug n andcounter-balance mrby means of nuts on the threaded outer endsof said rods or in any other suitable manner.

The counterbalance m on the arm at may be formed in a single piece withthe similar counter-balance, g, on the arm 'q, as indicated in dottedlines in Fig. 3.

silt

posed. to makea burnishingmachine havinga rotating wheel which iscarried back and forth over the heel and has its rotation reversed witheach reversal of its progressive movement; hence we do not claim this,broadly, as our invention;

We claim- 1. The combination of the oscillating shaft having arms orholders in q, the sliding hearing it and the swiveled bearings,supported, respectively, by said arms, the tool-carrying spindlejournaled in said bearings and provided withapinion, t, the fixedinternal gear, 9', meshing with said pinion, and a spring or springs,10, whereby the sliding bearing is pressed'i'nwa-rdly, as set forth.

2. The combination of thesupportingstandard having the arms I) I), theinternal gear, it, having upon its rear side a socket, a, formed toreceive one of said arms, the oscillating shaft 0, journaled in saidarms, and the shaft 0,

journaled in bearings supported and oscillated by the shaft 0, andprovided at one end with a pinion, t, meshing with'the said internalgear and at the other end with a bu'rnishingtool, as set forth.

3. The combination of the tool -carrying spindle 0, oscillating shaft 0,arms m q, pinion t, and fixed internal gear, a, the swiveled bearing sand the sliding bearing a for said spindle, the springs 10 w, wherebysaid bearing a and spindle 0 are drawn toward the center of said are,and adjustable devices, as the lug c and screw 1), for arresting theinward movement of the spindle, as set forth.

4. The combination of the tool-carrying spindle, the means forreciprocating the same in the arc of a circle, thesliding bearin'gn forsaid spindle, the springs 20 10, whereby said bearing and spindle aredrawn toward the center of said are, adjustable devices, as the lug cand screw 1), for limiting the inward movement of said spindle, andadjustable devices, substautially as described, whereby the tension ofthesprings may be adjusted to correspond with variations in thelimitation of the inward movement of the spindle, as set forth.

In testimony whereof we have signed our names to this specification, inthe presence of two subscribing witnesses, this 18th day of December,1886.

7 JOHN H. CONNOR.

THOMAS F. BLESSINGTON. STEPHEN G. BLESSINGTON.

Witnesses:

FRANCIS H. PEARL, JOSEPH H. PEARL.

